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| #!/bin/bash | |
| # THIS SCRIPT IS LICENSED UNDER CC0 v.1 AVAILABLE AT https://creativecommons.org/publicdomain/zero/1.0/legalcode | |
| # THIS SCRIPT IS THEREFORE AVAILABLE IN THE PUBLIC DOMAIN | |
| set -ex | |
| FILE=img.img | |
| SIZE=32000 | |
| cd ~ | |
| dd if=/dev/urandom of="$FILE" bs=1M count="$SIZE" # Create an image file of $SIZE * 1MB | |
| sgdisk --clear --mbrtogpt "$FILE" # Clear any glitched partition table and convert to GPT | |
| sgdisk --print "$FILE" # Make sgdisk aware of the new part table | |
| sgdisk -n 0:0:+2GiB -t 0:0700 "$FILE" # Create a partition of 2GiB from the first available sector and assign it the "MS Basic Data type" | |
| sgdisk -n 0:0:0 -t 0:8300 "$FILE" # Create a partition that uses the rest of the drive under the "Linux Filesystem" type | |
| sudo kpartx -ag "$FILE" # Mount the image file as a block device | |
| NAME=$(lsblk -P --nodeps | grep loop | grep \"\" | awk -F= '{print $2}'| awk '{print $1}' | tr -d '"') | |
| LOOP_P1="/dev/mapper/${NAME}p1" | |
| LOOP_P2="/dev/mapper/${NAME}p2" | |
| [[ -f $LOOP_P1 ]] || exit # Test if the loop exists | |
| #Format both partitions | |
| mkfs.vfat -F32 -s2 "$LOOP_P1" | |
| mkfs.ext4 "$LOOP_P2" | |
| # Unmount the loop device | |
| sudo dmsetup remove_all && sudo losetup -d "/dev/${NAME}" |
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